The Safe Navigation Operator in Ruby .& The most interesting addition to Ruby 2.3.0 is the Safe Navigation Operator(&.). A similar operator has been present in C# and Groovy for a long time with a slightly different syntax – ?.. So what does it do? Scenario Imagine you have an account that has an owner and you want to get … Continue reading "The Safe Navigation Operator (&.) in Ruby"

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Understanding Storage Sizes for MySQL TEXT Data Types TEXT data objects, as their namesake implies, are useful for storing long-form text strings in a MySQL database. The four TEXT data object types are built for storing and displaying substantial amounts of information as opposed to other data object types that are helpful with tasks like … Continue reading "Understanding Storage Sizes for MySQL TEXT Data Types"

Create a bootable installer for macOS High Sierra You can use an external drive or secondary partition as a startup disk from which to install the Mac operating system. A bootable installer can be useful when you want to install macOS on multiple computers without downloading the installer each time. When your Mac starts up from a … Continue reading "Create a bootable installer for macOS High Sierra"

String objects hold ordered sequences of bytes, typically characters, usually to form pieces of human-readable text. They’re a very common object type in all programming languages, and Ruby has a number of high-level and a few low-level ways to create, access and manipulate String objects. Strings are most often created with a String literal. A … Continue reading "String Literals"

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